Is there a way for me to control an attribute of a point instance object?

I can control an attribute with a copy stamp on the object level but what about controlling an attribute of a point instance on the Pop level?

Ex: I have an object that has an attribute that controls some extrudes, I want to randomize the extrude scale on each point instance, for that I need to be able to access attributes on a point instance.

Is that possible?

since you are after geometric change on each instance, it would not be true instance anymore, because mantra has to keep all modified geometry in memory

you can append copy sop after the pop network for that kind of thing

read this for more info
http://www.sidefx.com/docs/houdini10.0/copy/instancing [sidefx.com]
http://www.sidefx.com/docs/houdini10.0/copy/varying [sidefx.com]

Thank you for make it clear, It's good to know what you can and can't do.

I though I could have some control in the point instance regarding the geometry.

But thanks, it really helped.

you still have control over displacement per instance
so if you can do your geometry modification through displacement shader, you can use instances

Hummmm!

I'll keep that in mind.

Thanks!